It would be to enjoy school while it lasted. Enjoy spending every day with your friends, enjoy not having to focus on working for a living or the responsibilities of adulthood and to focus on having fun. I moved out of home during year 12 due to having a bad home situation and ever since then have missed my school life. I know not everyone feels this way about school, but I found it a safe place. Also I would say don’t take yourself too seriously. You’re young, with so much still to learn and do. Be gentle with yourselves.